WO2019237339A1 - Rapport de csi pour transmission/panneau à multiples trp - Google Patents

Rapport de csi pour transmission/panneau à multiples trp Download PDF

Info

Publication number
WO2019237339A1
WO2019237339A1 PCT/CN2018/091527 CN2018091527W WO2019237339A1 WO 2019237339 A1 WO2019237339 A1 WO 2019237339A1 CN 2018091527 W CN2018091527 W CN 2018091527W WO 2019237339 A1 WO2019237339 A1 WO 2019237339A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
trp
value
rank indication
report
Prior art date
Application number
PCT/CN2018/091527
Other languages
English (en)
Inventor
Yukai GAO
Gang Wang
Original Assignee
Nec Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nec Corporation filed Critical Nec Corporation
Priority to US17/252,117 priority Critical patent/US11552687B2/en
Priority to CN201880094630.6A priority patent/CN112292894A/zh
Priority to JP2020569763A priority patent/JP7151796B2/ja
Priority to PCT/CN2018/091527 priority patent/WO2019237339A1/fr
Publication of WO2019237339A1 publication Critical patent/WO2019237339A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • New radio access system which is also called as NR system or NR network
  • NR system is the next generation communication system.
  • RAN Radio Access Network
  • 3GPP Third Generation Partnership Project
  • the NR system will consider frequency ranging up to 100Ghz with an object of a single technical framework addressing all usage scenarios, requirements and deployment scenarios defined in Technical Report TR 38.913, which includes requirements such as enhanced mobile broadband, massive machine-type communications, and ultra-reliable and low latency communications.
  • ⁇ NR supports the following number of CWs per PDSCH/PUSCH assignment per UE:
  • ⁇ DMRS port groups belonging to one CW can have different QCL assumptions
  • a single NR-PDCCH schedules a single NR-PDSCH where separate layers are transmitted from separate TRPs
  • TRPs/panels transmission was down-prioritized and thus not discussed in details in Rel. 15.
  • the current NR, CSI-RS configuration and TCI state configuration are based on single TRP/panel.
  • TRPs are not QCLed and thus solutions of the CSI measurement and reporting for the single TRP transmission cannot applied to the multiple TRP transmission.
  • a method for transmitting a CSI report for multiple TRP transmission may include, transmitting a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition; and transmitting a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource set.
  • CSI-RS channel state information reference signal
  • a method for receiving a CSI report for multiple TRP transmission may include receiving a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition and receiving a second CSI report on a second TRP of multiple TRPs serving the terminal device for the CSI-RS resource set.
  • CSI-RS channel state information reference signal
  • a terminal device wherein the terminal device is configured for transmitting a CSI report for multiple TRP transmission.
  • the terminal device may include a transceiver, and a processor, configured to control the transceiver to, transmit a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition, and transmit a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource.
  • CSI-RS channel state information reference signal
  • a network device configured to receive a CSI report for multiple TRP transmission.
  • the network device may include a transceiver; and a processor, configured to control the transceiver to: receive a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition, and receive a second CSI report on a second TRP of multiple TRPs serving the terminal device for the CSI-RS resource set.
  • CSI-RS channel state information reference signal
  • a terminal device may comprise a processor and a memory.
  • the memory may be coupled with the processor and having program codes therein, which, when executed on the processor, cause the terminal device to perform operations of the method according to any embodiment according to the first aspect.
  • a computer-readable storage media with computer program codes embodied thereon, the computer program codes configured to, when executed, cause an apparatus to perform actions of the method according to any embodiment in the first aspect.
  • a computer-readable storage media with computer program codes embodied thereon, the computer program codes configured to, when executed, cause an apparatus to perform actions of the method according to any embodiment in the second aspect.
  • a computer program product comprising a computer-readable storage media according to the seventh aspect.
  • a computer program product comprising a computer-readable storage media according to the eighth aspect.
  • FIG. 1 illustrates an example scenario of multiple TRP transmission in which the present disclosure can be implemented
  • FIG. 2 illustrates a flow chart of a method for transmitting a CSI report for multiple TRP transmission at a terminal device according to some embodiments of the present disclosure
  • FIG. 3 illustrates possible combinations of numbers of layers for multiple TRP transmission involving two TRPs according to some embodiments of the present disclosure
  • FIG. 4 illustrates example combinations of numbers of layers for multiple TRP transmission involving two TRPs according to sorne embodiments of the present disclosure
  • FIG. 5 illustrates example combinations of numbers of layers for multiple TRP transmission involving two TRPs according to some embodiments of the present disclosure
  • FIG. 6 illustrates a flow chart of a method for receiving a CSI report for multiple TRP transmission at a network device according to some embodiments of the present disclosure
  • FIG. 7 schematically illustrates a block diagram of an apparatus for transmitting a CSI report at a terminal device according to some embodiments of the present disclosure
  • FIG. 8 schematically illustrates a block diagram of an apparatus for receiving a CSI report at a network device according to some embodiments of the present disclosure.
  • FIG. 9 schematically illustrates a simplified block diagram of an apparatus 910 that may be embodied as or comprised in a terminal device like UE, and an apparatus 920 that may be embodied as or comprised in a network device like gNB as described herein.
  • each block in the flowcharts or blocks may represent a module, a program, or a part of code, which contains one or more executable instructions for performing specified logic functions, and in the present disclosure, a dispensable block is illustrated in a dotted line.
  • these blocks are illustrated in particular sequences for performing the steps of the methods, as a matter of fact, they may not necessarily be performed strictly according to the illustrated sequence. For example, they might be performed in reverse sequence or simultaneously, which is dependent on natures of respective operations.
  • block diagrams and/or each block in the flowcharts and a combination of thereof may be implemented by a dedicated hardware-based system for performing specified functions/operations or by a combination of dedicated hardware and computer instructions.
  • UE user equipment
  • UE may refer to a terminal, a Mobile Terminal (MT) , a subscriber station, a portable subscriber station, Mobile Station (MS) , or an Access Terminal (AT) , and some or all of the functions of the UE, the terminal, the MT, the SS, the portable subscriber station, the MS, or the AT may be included.
  • MT Mobile Terminal
  • MS Mobile Station
  • AT Access Terminal
  • BS may represent, e.g., a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , gNB (next generation Node B) , a radio header (RH) , a remote radio head (RRH) , a relay, or a low power node such as a femto, a pico, and so on.
  • NodeB or NB node B
  • eNodeB or eNB evolved NodeB
  • gNB next generation Node B
  • RH radio header
  • RRH remote radio head
  • relay or a low power node such as a femto, a pico, and so on.
  • CSI-RS configuration and TCI state configuration are based on single TRP/panel.
  • Table 1 illustrates the CSI report structure in NR system.
  • TRPs are not QCLed and thus solutions of the CSI measurement and reporting for singling TRP transmission cannot applied to the multiple TRP/panel transmission.
  • Embodiments of the present disclosure provide a solution of CSI reporting.
  • the basic idea is to transmit, by a terminal device, multiple CSI reports for a CSI-RS resource set for CSI acquisition.
  • the multiple CSI reports it may enable multiple TRP/panel transmission for a terminal device.
  • an offset value indication to reduce CSI signaling overhead.
  • the terminal device transmits a first CSI report on a first TRP of multiple TRPs serving the terminal device for a CSI-RS resource set for CSI acquisition; and transmits a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource set.
  • the network device receives the first CSI report on the first TRP and the second CSI report on the second TRP, and obtains CSI information from the two reports.
  • the basic idea disclosed herein may also be used for multiple panel transmission, wherein a panel denotes a group of antennas on the network device and/or user terminal device and the multiple panel transmission means transmission using multiple panels for single user device.
  • the CSI measurement and the CSI reporting will be made for respective panels instead of TRPs for multiple TRP transmission.
  • FIG. 2 schematically illustrates a flow chart of a method for transmitting CSI report for multiple TRP transmission at a terminal device according to some embodiments of the present disclosure.
  • the method 200 may be performed at a terminal device, for example a terminal device like UE, or other like devices.
  • the CSI reporting can be configured by the network device.
  • the CSI report could be transmitted periodically, or semi-persistently or alternatively, the CSI report could be transmitted upon receipt of a reporting request from the network device.
  • the terminal device may select a CSI-RS resource for each TRP involved in the multiple TRP transmission from one CSI-RS resource set.
  • the terminal device then performs CSI measurement using the selected CSI-RS resource for each TRP to obtain CSI information for each TRP.
  • the terminal device can transmit multiple sets of CSI reports for multiple TRPs, for example one report per TRP.
  • the terminal device may transmit a first CSI report on the first TRP to the network device.
  • the first CSI report could include CSI-RS resource indication (CRI) and rank indication (RI) for the first TRP.
  • the CRI indicates the CSI-RS resource used by the terminal device for CSI acquisition or measurement.
  • the RI indicates the maximum number of layers supported by the terminal device.
  • the CSI report may also include any of precoding matrix indicator (PMI) ; channel quality indicator (CQI) , and layer indication (LI) , etc., for the first TRP.
  • the PMI indicates an index of precoding matrix
  • the CQI indicates channel quality
  • LI indicates a layer with the best channel quality.
  • step 220 the terminal device transmits a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource set.
  • the second CSI report could include CRI and rank indication RI for the second TRP.
  • the CSI report may also include any of PMI, CQI, layer indication, etc., for the second TRP.
  • the first CSI report may contain a value of RI indicating the absolute RI for the first TRP and the second CSI report may use an offset value relative to the value of RI for the first TRP to indicate a value of RI for the second TRP.
  • a two-TRP transmission will be taken as an example to describe embodiments regarding offset indication of RI.
  • FIG. 3 illustrates possible combinations of numbers of layers for two TRP transmission involving two TRPs according to some embodiments of the present disclosure.
  • the NR system supports up to 8 layers transmission and thus combinations of numbers of layers for the two-TRP transmission could contain layers 1 to 8 of TRP 1 in combination with layer 0 to 8 of TPR 2, wherein layer 0 means TRP 2 does not involve the transmission.
  • layer 0 means TRP 2 does not involve the transmission.
  • the total number of layers shall not be more than 8 and the number of codewords is not larger than 2.
  • the communications indicated by reference sign 310 cannot be used.
  • it may also further exclude some combinations by further limiting the difference between numbers of layers for two TRPs.
  • the two TRP may have substantially similar space multiplexing capacity and thus the layer difference of two TRPs can be constrained within one layer.
  • combinations indicated by reference signs 320A and 320B cannot be used either.
  • one of two CSI reports could contain an absolute value of RI.
  • the value of RI may be restricted by Codebook Subset Restriction (CBSR) .
  • CBSR Codebook Subset Restriction
  • the RI can be indicated with an offset value relative of the value of RI of the first TRP. For these combinations illustrated in FIG. 4, it could use 2 bits to indicate the offset value.
  • RI offset Value 00 -1 01 0 10 1 11 Reserved or indicate that the RI for this CRI is 0
  • the offset could indicate a positive value, a negative value or zero.
  • the offset could indicate a value of RI higher than, lower than or equal to the reported absolute value of rank indication. It could use “00” , “01” , “10” to indicate combinations other than those in the first row and use “11” indicate that the combinations in the first row in which one of the RI is 0.
  • the RI is indicated by an absolute value, it will require maximum 3 bits to indicate 0 layer to 4 layers or to indicate 1 layer to 8 layers; by means of the offset value, it only requires 2 bits to indicate the same range of RI. Thus, it could reduce the signaling overhead of CSI Report.
  • it may dynamically select one of the two TRPs for which the CSI contains the absolute value of RI and in such case; one TRP with a larger or lower value of rank indication can be selected as the TRP with RI indicated by an absolute value.
  • the offset value could indicate a non-positive or non-negative value. In this way, it could support more combinations or to further reduce the signaling overhead.
  • Table 3 illustrates another example table for RI Offset according to some embodiments of the present disclosure.
  • one TRP with a larger value of rank indication can be selected as the TRP with RI indicated by an absolute value.
  • the CRI could indicate index of CSI-RS.
  • the offset value could indicate a non-positive value.
  • the offset value indicates a value of rank indication lower than or equal to the reported absolute value of rank indication. For example, if RI for TRP 1 is 2 and RI for TRP 2 is 3, then the RI with an absolute value 3 will be reported for TRP 2 and an offset value “1” will be reported for TRP 1.
  • RI for TRP 1 is 2 and RI for TRP 2 is 1, then the RI with an absolute value 2 will be reported for TRP 1 and an offset value “1” will be reported for TRP 2.
  • one TRP with a lower value of rank indication can be selected as the TRP with RI indicated by an absolute value.
  • the offset value could indicate a non-negative value.
  • the offset value indicates a value of rank indication larger than or equal to the reported absolute value of rank indication.
  • the value of RI with an offset value reported can be determined as the sum of the reported absolute value and the offset value.
  • Table 4 illustrates another example table for RI Offset according to some embodiments of the present disclosure, wherein only one bit is used.
  • the reported of RI in two CSI reports may be a combination value.
  • RI is reported with one field and the value of the field may indicate one combination of two RI values (first RI, second RI) .
  • the allowed number of combinations of first RI and second RI may be different based on different values of parameters from at least one of the number of ports for each CSI-RS resource (for example, denoted is P) , the number of allowed RI values configured in Codebook Subset Restriction (CBSR) (for example, denoted nRI) , and the number of CSI-RS resources in one CSI-RS resource set (for example, denoted N) .
  • CBSR Codebook Subset Restriction
  • one report with a larger value of rank indication can be selected as the first value in the reported RI combination.
  • the RI value is 0, which means there is no RI report for this TRP, this case can be indicated with other parameters, and no offset value is required to indicate the RI value “0” .
  • it could report only one set of CSI with a non-zero RI value.
  • One or more bits can be used to indicate whether one CSI report or multiple CSI reports are reported. For example, if only one CSI report is indicated, the total number of layers from the UE report is the value of the RI in the reported CSI report. If two CSI reports are indicated, the total number of layers from the UE report is the sum of the two actual RI values respectively contained in the two CSI reports.
  • the value of RI can be restricted to be not larger 4 in one set.
  • it may also report two CSI reports with the same CSI information if one of two RIs value is 0.
  • the total number of layers from the UE report is the value of RI in only one of the first or second CSI report. If the values of CRIs in the two CSI reports are different, the two CSI reports are valid and the total number of layers from the UE report can be determined as the sum of the two actual RI values.
  • the number of bits for CRI report in each CSI report is ceil (log2 (N) ) and the number of bits for RI report in each CSI report is 0. If the two values of CRI in two CSI reports. are same, the total number of RI from UE report is 1; if the two values of CRI in two CSI reports are different the total number of RI from UE report is 2.
  • the number of bits for CRI report in each CSI report is ceil (log2 (N) and the number of bits for RI report in the first CSI report is min (1, ceil (log2 (n RI ) ) .
  • the number of allowed RI values n RI 1
  • the number of bits for RI report in each CSI report is 0.
  • the reported value of RI in each CSI reports may be an absolute RI value from ⁇ 1, 2 ⁇ , and the number of bits for RI report in each CSI report is 1.
  • the reported value of RI in the first CSI report may be absolute value from ⁇ 1, 2 ⁇
  • the number of bits for RI report in the first CSI report is 1
  • the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4
  • the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported value of RI for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (2, 1) , (2, 2) ⁇
  • the number of bits for RI combination report is 2.
  • the reported value of RI for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (2, 2) ⁇ or from at least one of ⁇ (1, 1) , (2, 1) , (2, 2) ⁇ , and the number of bits for RI combination report is 2.
  • the number of bits for CRI report in each CSI report is ceil (log2 (N) ) .
  • the number of allowed RI values n RI 1
  • the number of bits for RI report in each CSI report is 0.
  • the reported value of RI in each CSI report may be an absolute RI value from two values of ⁇ 1, 2, 3, 4 ⁇ , and the number of bits for RI report in each CSI report is 1.
  • the reported value of RI in each CSI report may be an absolute RI value from 3 values or 4 values of ⁇ 1, 2, 3, 4 ⁇ , and the number of bits for RI report in each CSI report is 2.
  • the reported value of RI in the first CSI report may be absolute value from two values of ⁇ 1, 2, 3, 4 ⁇
  • the number of bits for RI report in the first CSI report may be 1
  • the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4
  • the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported value of RI in the first CSI report may be absolute value from three or four values of ⁇ 1, 2, 3, 4 ⁇ , and the number of bits for RI report in the first CSI report may be 2, and the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4, and the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported values of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (1, 3) , (1, 4) , (2, 1) , (2, 2) , (2, 3) , (2, 4) , (3, 1) , (3, 2) , (3, 3) , (3, 4) , (4, 1) , (4, 2) , (4, 3) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (1, 2) , (2, 1) , (2, 2) , (2, 3) , (3, 2) , (3, 3) , (3, 4) , (4, 3) , (4, 4) ⁇ , and the number of bits for RI combination report is 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported value of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (1, 3) , (1, 4) , (2, 1) , (2, 2) , (2, 3) , (2, 4) , (3, 3) , (3, 4) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (2, 1) , (2, 2) , (3, 1) , (3, 2) , (3, 3) , (4, 1) , (4, 2) , (4, 3) , (4, 4) ⁇ , and the number of bits for RI combination report is 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported values of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (2, 2) , (2, 3) , (3, 3) , (3, 4) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (2, 1) , (2, 2) , (3, 2) , (3, 3) , (4, 3) , (4, 4) ⁇
  • the number of bits for RI combination report is 3.
  • the combination with restricted RI value can be excluded, and the number of bits for RI combination report can be further reduced.
  • the number of ports for each CSI-RS resource in the CSI-RS resource set is P>4, for example P may be 8, 12, 16, 24, or 32.
  • the number of bits for CRI in each CSI report is ceil (log2 (N) ) .
  • the number of allowed RI values n RI 1
  • the number of bits for RI report in each CSI report is 0.
  • the reported value of RI in each CSI report may be an absolute RI value from two values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the number of bits for RI report in each CSI report is 1.
  • the reported value of RI in each CSI report may be an absolute RI value from 3 values or 4 values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the number of bits for RI report in each CSI report is 2.
  • the reported value of RI in each CSI report may be an absolute RI value from 5 values or 6 values or 7 values or 8 values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the number of bits for RI report in each CSI report is 3.
  • the reported value of RI in the first CSI report may be absolute value from two values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the number of bits for RI report in the first CSI report may be 1; and the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4, and the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported value of RI in the first CSI report may be absolute value from three or four values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇ , and the number of bits for RI report in the first CSI report may be 2, and the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4, and the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported value of RI in the first CSI report may be absolute value from 5 values or 6 values or 7 values or 8 values of ⁇ 1, 2, 3, 4, 5, 6, 7, 8 ⁇
  • the number of bits for RI report in the first CSI report may be 3
  • the reported value of RI in the second CSI report may be an offset value as shown in Table 2, Table 3 or Table 4
  • the number of bits for RI report in the second CSI report may be 2, 2 or 1 respectively for Table 2, Table 3 or Table 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported value of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (1, 3) , (1, 4) , (2, 1) , (2, 2) , (2, 3) , (2, 4) , (3, 1) , (3, 2) , (3, 3) , (3, 4) , (4, 1) , (4, 2) , (4, 3) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (1, 2) , (2, 1) , (2, 2) , (2, 3) , (3, 2) , (3, 3) , (3, 4) , (4, 3) , (4, 4) ⁇ , and the number of bits for RI combination report is 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported value of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (1, 3) , (1, 4) , (2, 1) , (2, 2) , (2, 3) , (2, 4) , (3, 3) , (3, 4) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (2, 1) , (2, 2) , (3, 1) , (3, 2) , (3, 3) , (4, 1) , (4, 2) , (4, 3) , (4, 4) ⁇ , and the number of bits for RI combination report is 4.
  • the reported of RI in two CSI reports may be a combination value
  • the reported value of RI combination for two CSI reports may be from at least one of ⁇ (1, 1) , (1, 2) , (2, 2) , (2, 3) , (3, 3) , (3, 4) , (4, 4) ⁇ or from at least one of ⁇ (1, 1) , (2, 1) , (2, 2) , (3, 2) , (3, 3) , (4, 3) , (4, 4) ⁇
  • the number of bits for RI combination report is 3.
  • the combination with restricted RI value can be excluded, and the number of bits for RI combination report can be further reduced.
  • the present disclosure further proposes a CSI reporting solution for beam sweeping.
  • the beam reporting there is parameter “repetition” controlling beam sweeping modes.
  • the parameter “repetition” is set as “on” and in such a case, the network device will use the same beam during the beam sweeping and the terminal device could select a reception beam.
  • the parameter “repetition” is set as “off” and in such a case, the network device will use the different beams to transmit signaling during the beam sweep and the terminal device could select a transmission beam from the different beams used by the network device.
  • the reportQuantity reported by the terminal device could be “cri-RSRP” , or “none” (nothing is reported) ; in the second mode, the terminal device could report “cri-RSRP. ”
  • RSRP is always combined with CRI or SSBRI when it is reported, but when the parameter “repetition” is set as ‘on’ , no CRI is reported.
  • CSI reporting might be beneficial even when the parameter “repetition” is set as “on” since it could feed back the quality of the fixed transmission beam to the network device so that the network device could know the case when the fixed transmission beam does not have a desirable channel quality
  • a new reportQuantity could be used to report CSI when the parameter “repetition” is set as on.
  • the new reportQuantity may contain information on “RSRP” or “SINR” to report the CSI when the parameter “repetition” is set as “on. ”
  • the terminal device uses the reportQuantity “cri-RSRP” to report CSI.
  • the reportQuantity “cri-RSRP” may contain both information on measured CRI or SSBRI and RSRP; however, the network device will ignore the reported value of CRI or SSBRI and just obtain information on the reported value of RSRP when the parameter “repetition” is set as “on. ”
  • the terminal device still uses the reportQuantity “cri-RSRP” to report CSI.
  • the reportQuantity “cri-RSRP” contain both information part on CRI or SSBRI and RSRP; however, the information part on CRI or SSBRI just contains a default or fixed value (for example all zero or one for each bit for CRI or SSBRI) instead of the measured value when the parameter “repetition” is set as “on. ”
  • the network device could know based the default or fixed value that the report only contains useful RSRP information.
  • the terminal device still uses the reportQuantity “cri-RSRP” to report CSI when the parameter “repetition” is set as “on, ” but the information part on CRI or SSBRI only uses one bit regardless of the number of resources within one set. In such a way, the CSI report could have a lower signaling overhead.
  • multiple CSI reports on multiple TRPs shall be transmitted for each CSI-RS resource set and the CSI-RS resource set could be divided into a multiple resource subsets.
  • one CI-RS resource set including N CSI-RS could be divided into two CSI-RS resource subset each having N/2 CSI-RS resource.
  • a first subset of the CSI-RS resource subsets can be used for CSI acquisition of the first TRP and a second subset of the CSI-RS subsets can be used for CSI acquisition of the second TRP. In such a case, it only need a half of bitwidth for CRI and therefore the bitwidth for CRI in Table 1 will become log 2 (N/2) .
  • FIG. 6 schematically illustrates a flow chart of a method for receiving a CSI report at a network device according to some embodiments of the present disclosure.
  • the method 600 may be performed at a network device, for example a base station like gNB, or other like devices.
  • the network device may receive a first CSI report on a first TRP of multiple TRPs serving a terminal device for a CSI-RS resource set for CSI acquisition.
  • CSI reporting can be configured by the network device.
  • the CSI report could be transmitted periodically, or alternatively, the CSI report could be transmitted upon receipt of a reporting request from the network device.
  • the terminal device After the terminal device performs CSI measurement using selected CSI-RS resource for each TRP, it could obtain CSI information for each TRP.
  • the terminal device For the one CSI-RS resource set for CSI acquisition, the terminal device can transmit multiple sets of CSI reports for multiple TRPs, one report per TRP.
  • the network device may receive a first CSI report on the first TRP.
  • the first CSI report could include CRI and RI for the first TRP.
  • the CSI report may also include any of PMI, CQI, and LI, etc., for the first TRP.
  • the network device receives a second CSI report on a second TRP of multiple TRPs serving the terminal device for the CSI-RS resource set. Similar to the first CSI report, the second CSI report could include CRI and rank indication RI for the second TRP. In some embodiments of the present disclosure, the CSI report may also include any ofPMI, CQI, layer indication, etc., for the second TRP.
  • the first CSI report may contain a value of RI for the first TRP and the second CSI report may use an offset value relative to the value of RI for the first TRP to indicate a value of RI for the second TRP.
  • the network device may further determine, in step 630, the value of the rank indication on the second TRP based on the offset value and the value of rank indication on the first TRP.
  • the offset value may indicate a value of rank indication on the second TRP higher than, lower than or equal to the value of rank indication on the first TRP.
  • offset value indication one may refer to content regarding to Table 2.
  • the offset value may indicate a value of rank indication on the second TRP lower than or equal to the value of rank indication on the first TRP. In some embodiments of the present disclosure, the offset value may indicate a value of rank indication on the second TRP higher than or equal to the value of rank indication on the first TRP. For some detailed description of offset value indication, one may refer to content regarding to Tables 3 to 4.
  • the CSI-RS resource set can be divided into multiple CSI-RS resource subsets for the multiple TRPs, and wherein a first subset of the CSI-RS resource subsets is used for CSI acquisition of the first TRP and a second subset of the CSI-RS subsets is used for CSI acquisition of the second TRP.
  • offset value indication one may refer to content regarding to Table 5.
  • FIG. 7 schematically illustrates a block diagram of an apparatus for transmitting a CSI report for multiple TRP transmission at a terminal device according to some embodiments of the present disclosure.
  • the apparatus 700 may be implemented at a terminal device, for example UE or other like terminal devices.
  • the apparatus 700 may include a first CSI report transmission module 710 and a second CSI report transmission report 720.
  • the first CSI report transmission module 710 may be configured to transmit a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition.
  • the second CSI report transmission report 720 can be configured to transmit a second CSI report on a second TRP of the multiple TRPs serving the terminal device for the CSI-RS resource set.
  • CSI-RS channel state information reference signal
  • the first CSI report may contain a first rank indication on the first TRP and the second CSI report may contain a second rank indication on the second TRP, and wherein the first rank indication may indicate a value of rank indication on the first TRP and the second rank indication may indicate an offset value relative to the value of rank indication on the first TRP.
  • the offset value may indicate a value of rank indication on the second TRP higher than, lower than or equal to the value of rank indication on the first TRP.
  • one of the multiple TRPs with a larger value of rank indication may be determined as the first TRP, and wherein the offset value may indicate a value of rank indication on the second TRP lower than or equal to the value of rank indication on the first TRP.
  • one of the multiple TRPs with a smaller value of rank indication may be determined as the first TRP, and wherein the offset value may indicate a value of rank indication on the second TRP higher than or equal to the value of rank indication on the first TRP.
  • the CSI-RS resource set may be divided into multiple CSI-RS resource subsets for the multiple TRPs, and wherein a first subset of the CSI-RS resource subsets may be used for CSI acquisition of the first TRP and a second subset of the CSI-RS subsets may be used for CSI acquisition of the second TRP.
  • each of the first and second CSI reports may include one or more of: CSI-RS resource indication; rank indication; precoding matrix indicator; channel quality indicator; and layer indication.
  • FIG. 8 schematically illustrates a block diagram of an apparatus for receiving a CSI report for multiple TRP transmission at a terminal device according to some embodiments of the present disclosure.
  • the Apparatus 800 could be implemented on the network device or node for example gNB, or other like network devices.
  • apparatus 800 may include a first CSI report reception module 810 and a second CSI report reception module 820.
  • the first CSI report reception module 810 may be configured to receive a first CSI report on a first TRP of multiple TRPs serving a terminal device for a channel state information reference signal (CSI-RS) resource set for CSI acquisition.
  • the second CSI report reception module 820 may be configured to receive a second CSI report on a second TRP of multiple TRPs serving the terminal device for the CSI-RS resource set.
  • CSI-RS channel state information reference signal
  • the first CSI report may contain a first rank indication on the first TRP and the second CSI report may contain a second rank indication on the second TRP, and wherein the first rank indication indicates a value of rank indication on the first TRP and the second rank indication indicates an offset value relative to the value of rank indication on the first TRP.
  • apparatus 800 may further include a RI value determination module 830 which can be configured to determine the value of the rank indication on the second TRP based on the offset value and the value of rank indication on the first TRP.
  • the offset value may indicate a value of rank indication on the second TRP higher than, lower than or equal to the value of rank indication on the first TRP.
  • the offset value may indicate a value of rank indication on the second TRP lower than or equal to the value of rank indication on the first TRP.
  • the offset value may indicate a value of rank indication on the second TRP higher than or equal to the value of rank indication on the first TRP.
  • the CSI-RS resource set may be divided into multiple CSI-RS resource subsets for the multiple TRPs, and wherein a first subset of the CSI-RS resource subsets may be used for CSI acquisition of the first TRP and a second subset of the CSI-RS subsets may be used for CSI acquisition of the second TRP.
  • each of the first and second CSI reports may include one or more of: CSI-RS resource indication; rank indication; precoding matrix indicator; channel quality indicator; and layer indication.
  • apparatuses 700 and 800 are described with reference to Figs. 7 and 8 in brief. It can be noted that the apparatuses 700 to 800 may be configured to implement functionalities as described with reference to Figs. 2 to 6. Therefore, for details about the operations of modules in these apparatuses, one may refer to those descriptions made with respect to the respective steps of the methods with reference to Figs. 2 to 6.
  • components of apparatuses 700 and 800 may be embodied in hardware, software, firmware, and/or any combination thereof.
  • the components of apparatuses 700 and 800 may be respectively implemented by a circuit, a processor or any other appropriate selection device.
  • apparatuses 700 and 800 may include at least one processor.
  • the at least one processor suitable for use with embodiments of the present disclosure may include, by way of example, both general and special purpose processors already known or developed in the future.
  • Apparatuses 700 and 800 may further include at least one memory.
  • the at least one memory may include, for example, semiconductor memory devices, e.g., RAM, ROM, EPROM, EEPROM, and flash memory devices.
  • the at least one memory may be used to store program of computer executable instructions.
  • the program can be written in any high-level and/or low-level compliable or interpretable programming languages.
  • the computer executable instructions may be configured, with the at least one processor, to cause apparatuses 700 and 800 to at least perform operations according to the method as discussed with reference to Figs. 2 to 6 respectively.
  • FIG. 9 schematically illustrates a simplified block diagram of an apparatus 910 that may be embodied as or comprised in a terminal device like UE, and an apparatus 920 that may be embodied as or comprised in a network device like gNB as described herein.
  • the apparatus 910 comprises at least one processor 911, such as a data processor (DP) and at least one memory (MEM) 912 coupled to the processor 911.
  • the apparatus 910 may further include a transmitter TX and receiver RX 913 coupled to the processor 911, which may be operable to communicatively connect to the apparatus 920.
  • the MEM 912 stores a program (PROG) 914.
  • the PROG 914 may include instructions that, when executed on the associated processor 911, enable the apparatus 910 to operate in accordance with embodiments of the present disclosure, for example method 200.
  • a combination of the at least one processor 911 and the at least one MEM 912 may form processing means 915 adapted to implement various embodiments of the present disclosure.
  • the apparatus 920 comprises at least one processor 911, such as a DP, and at least one MEM 922 coupled to the processor 911.
  • the apparatus 920 may further include a suitable TX/RX 923 coupled to the processor 921, which may be operable for wireless communication with the apparatus 910.
  • the MEM 922 stores a PROG 924.
  • the PROG 924 may include instructions that, when executed on the associated processor 921, enable the apparatus 920 to operate in accordance with the embodiments of the present disclosure, for example to perform method 600.
  • a combination of the at least one processor 921 and the at least one MEM 922 may form processing means 925 adapted to implement various embodiments of the present disclosure.
  • Various embodiments of the present disclosure may be implemented by computer program executable by one or more of the processors 911, 921, software, firmware, hardware or in a combination thereof.
  • the MEMs 912 and 922 may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples.
  • the processors 911 and 921 may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors DSPs and processors based on multicore processor architecture, as non-limiting examples.
  • the present disclosure may also provide a carrier containing the computer program as mentioned above, wherein the carrier is one of an electronic signal, optical signal, radio signal, or computer readable storage medium.
  • the computer readable storage medium can be, for example, an optical compact disk or an electronic memory device like a RAM (random access memory) , a ROM (read only memory) , Flash memory, magnetic tape, CD-ROM, DVD, Blue-ray disc and the like.
  • an apparatus implementing one or more functions of a corresponding apparatus described with an embodiment comprises not only prior art means, but also means for implementing the one or more functions of the corresponding apparatus described with the embodiment and it may comprise separate means for each separate function, or means that may be configured to perform two or more functions.
  • these techniques may be implemented in hardware (one or more apparatuses) , firmware (one or more apparatuses) , software (one or more modules) , or combinations thereof.
  • firmware or software implementation may be made through modules (e.g., procedures, functions, and so on) that perform the functions described herein.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, selon certains modes de réalisation, des procédés, des dispositifs et des appareils de signalement d'informations d'état de canal (CSI) pour une transmission à points de réception (TRP) multiples. Dans un mode de réalisation de la présente invention, un procédé peut consister à transmettre un premier rapport de CSI sur un premier TRP de multiples TRP desservant un dispositif terminal pour un ensemble de ressources de signal de référence d'informations d'état de canal (CSI-RS) en vue d'une acquisition de CSI. Le procédé peut en outre consister à transmettre un second rapport de CSI sur un second TRP des multiples TRP desservant le dispositif terminal pour l'ensemble de ressources de CSI-RS. Au moyen des modes de réalisation de la présente invention, il est possible de prendre en charge un signalement de CSI pour une transmission à multiples TRP.
PCT/CN2018/091527 2018-06-15 2018-06-15 Rapport de csi pour transmission/panneau à multiples trp WO2019237339A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US17/252,117 US11552687B2 (en) 2018-06-15 2018-06-15 CSI reporting for multiple TRP transmission/panel
CN201880094630.6A CN112292894A (zh) 2018-06-15 2018-06-15 用于多trp传输/面板的csi报告
JP2020569763A JP7151796B2 (ja) 2018-06-15 2018-06-15 複数のｔｒｐ送信／パネルに用いられるｃｓｉレポーティング
PCT/CN2018/091527 WO2019237339A1 (fr) 2018-06-15 2018-06-15 Rapport de csi pour transmission/panneau à multiples trp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/091527 WO2019237339A1 (fr) 2018-06-15 2018-06-15 Rapport de csi pour transmission/panneau à multiples trp

Publications (1)

Publication Number Publication Date
WO2019237339A1 true WO2019237339A1 (fr) 2019-12-19

Family

ID=68842416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/091527 WO2019237339A1 (fr) 2018-06-15 2018-06-15 Rapport de csi pour transmission/panneau à multiples trp

Country Status (4)

Country Link
US (1) US11552687B2 (fr)
JP (1) JP7151796B2 (fr)
CN (1) CN112292894A (fr)
WO (1) WO2019237339A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021135506A1 (fr) * 2019-12-31 2021-07-08 大唐移动通信设备有限公司 Procédé de rapport de mesure cqi, appareil, dispositif de côté réseau et terminal
WO2021155842A1 (fr) * 2020-02-06 2021-08-12 Mediatek Singapore Pte. Ltd. Procédé et appareil de rapport d'informations d'état de canal
CN113517965A (zh) * 2020-04-10 2021-10-19 维沃移动通信有限公司 信道状态信息报告的获取方法及终端
WO2021208958A1 (fr) * 2020-04-15 2021-10-21 维沃移动通信有限公司 Procédé de transmission de rapport de faisceau, terminal mobile et dispositif de réseau
WO2022018672A1 (fr) * 2020-07-21 2022-01-27 Lenovo (Singapore) Pte. Ltd. Rapport d'informations d'état de canal pour de multiples points d'émission/réception
EP4275317A4 (fr) * 2021-01-11 2024-03-06 Nec Corp Procédés de communication, dispositif terminal, dispositif réseau et support lisible par ordinateur

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110943769B (zh) * 2018-09-21 2022-04-12 大唐移动通信设备有限公司 一种信道状态信息的确定方法及装置
CN115119228A (zh) * 2021-03-23 2022-09-27 北京紫光展锐通信技术有限公司 信道状态信息csi的上报方法及相关产品
CN115150025B (zh) * 2021-03-30 2024-02-09 维沃移动通信有限公司 Csi反馈方法、相关设备及可读存储介质
WO2022205071A1 (fr) * 2021-03-31 2022-10-06 Apple Inc. Établissement de rapport d'informations d'état de canal pour opération à multiples points d'émission-réception
CN115603785A (zh) * 2021-07-07 2023-01-13 中兴通讯股份有限公司（Cn） 数据传输方法、设备和存储介质
WO2023206174A1 (fr) * 2022-04-27 2023-11-02 北京小米移动软件有限公司 Procédés et appareils de détermination de précodage à base de livre de codes, et dispositif et support de stockage
WO2023206225A1 (fr) * 2022-04-28 2023-11-02 Apple Inc. Livres de codes d'informations d'état de canal de transmission conjointe cohérente pour une opération de multiples points de transmission-réception
CN117134872A (zh) * 2022-05-20 2023-11-28 维沃移动通信有限公司 多trp联合传输的pmi参数的反馈方法、装置、终端及网络侧设备
WO2024026650A1 (fr) * 2022-08-01 2024-02-08 Nec Corporation Procédés, dispositifs et support de communication
WO2024060109A1 (fr) * 2022-09-22 2024-03-28 Qualcomm Incorporated Rapport d'informations d'état de canal de transmission conjointe cohérente de type ii avec compensation de domaine fréquentiel à un niveau de taille plus fin qu'une sous-bande
WO2024092481A1 (fr) * 2022-11-01 2024-05-10 Qualcomm Incorporated Rapport d'informations d'état de canal pour de multiples points de transmission-réception

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018028182A1 (fr) * 2016-08-12 2018-02-15 Qualcomm Incorporated Transmission multifaisceau dynamique pour des communications à entrées multiples et sorties multiples à technologie radio nouvelle
WO2018031924A1 (fr) * 2016-08-11 2018-02-15 Convida Wireless, Llc Conception de rétroaction csi pour une nouvelle radio
CN107836086A (zh) * 2016-06-03 2018-03-23 联发科技（新加坡）私人有限公司 Nr接入系统中透过波束追踪而支持移动性的方法以及装置
WO2018229078A1 (fr) * 2017-06-16 2018-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Informations d'état de canal pour signaux de référence dans un système de communication sans fil

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101715939B1 (ko) * 2009-06-18 2017-03-14 엘지전자 주식회사 채널 상태 정보 피드백 방법 및 장치
US20140045510A1 (en) 2012-07-25 2014-02-13 Nec Laboratories America, Inc. Coordinated Multipoint Transmission and Reception (CoMP)
JP6072258B2 (ja) 2012-08-28 2017-02-01 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおいてチャネル状態情報をフィードバックする方法及びそのための装置
KR102194928B1 (ko) 2013-05-01 2020-12-24 엘지전자 주식회사 무선 통신 시스템에서 분할 빔포밍을 위하여 단말이 피드백 정보를 전송하는 방법 및 이를 위한 장치
CN112383334B (zh) * 2015-01-19 2024-05-17 高通股份有限公司 用于针对fd-mimo的增强型csi反馈的方法和装置
US10972168B2 (en) 2016-02-03 2021-04-06 Ntt Docomo, Inc. User equipment and method for wireless communication
CN110024299B (zh) * 2016-09-28 2022-04-05 Idac控股公司 用于波束管理的系统和方法
WO2018082904A1 (fr) * 2016-11-04 2018-05-11 Sony Corporation Dispositif et procédé de communication
US10200103B2 (en) * 2016-11-23 2019-02-05 Samsung Electronics Co., Ltd. Method and apparatus to enable multi-resolution CSI reporting in advanced wireless communication systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107836086A (zh) * 2016-06-03 2018-03-23 联发科技（新加坡）私人有限公司 Nr接入系统中透过波束追踪而支持移动性的方法以及装置
WO2018031924A1 (fr) * 2016-08-11 2018-02-15 Convida Wireless, Llc Conception de rétroaction csi pour une nouvelle radio
WO2018028182A1 (fr) * 2016-08-12 2018-02-15 Qualcomm Incorporated Transmission multifaisceau dynamique pour des communications à entrées multiples et sorties multiples à technologie radio nouvelle
WO2018229078A1 (fr) * 2017-06-16 2018-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Informations d'état de canal pour signaux de référence dans un système de communication sans fil

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021135506A1 (fr) * 2019-12-31 2021-07-08 大唐移动通信设备有限公司 Procédé de rapport de mesure cqi, appareil, dispositif de côté réseau et terminal
WO2021155842A1 (fr) * 2020-02-06 2021-08-12 Mediatek Singapore Pte. Ltd. Procédé et appareil de rapport d'informations d'état de canal
CN113517965A (zh) * 2020-04-10 2021-10-19 维沃移动通信有限公司 信道状态信息报告的获取方法及终端
CN113517965B (zh) * 2020-04-10 2023-04-25 维沃移动通信有限公司 信道状态信息报告的获取方法及终端
WO2021208958A1 (fr) * 2020-04-15 2021-10-21 维沃移动通信有限公司 Procédé de transmission de rapport de faisceau, terminal mobile et dispositif de réseau
CN113543199A (zh) * 2020-04-15 2021-10-22 维沃移动通信有限公司 传输波束报告的方法、移动终端和网络设备
CN113543199B (zh) * 2020-04-15 2023-08-22 维沃移动通信有限公司 传输波束报告的方法、移动终端和网络设备
EP4138441A4 (fr) * 2020-04-15 2023-10-04 Vivo Mobile Communication Co., Ltd. Procédé de transmission de rapport de faisceau, terminal mobile et dispositif de réseau
WO2022018672A1 (fr) * 2020-07-21 2022-01-27 Lenovo (Singapore) Pte. Ltd. Rapport d'informations d'état de canal pour de multiples points d'émission/réception
EP4275317A4 (fr) * 2021-01-11 2024-03-06 Nec Corp Procédés de communication, dispositif terminal, dispositif réseau et support lisible par ordinateur

Also Published As

Publication number Publication date
JP7151796B2 (ja) 2022-10-12
CN112292894A (zh) 2021-01-29
US11552687B2 (en) 2023-01-10
US20210258060A1 (en) 2021-08-19
JP2021534602A (ja) 2021-12-09

Similar Documents

Publication Publication Date Title
US11552687B2 (en) CSI reporting for multiple TRP transmission/panel
US11483051B2 (en) Methods and devices for beam report transmission and receiving
US9736780B2 (en) Signaling for downlink coordinated multipoint in a wireless communication system
US10630361B2 (en) Method for feeding back channel state information, UE and system
KR101631006B1 (ko) 무선 통신 시스템에서 다운링크 협력 다지점을 위한 시그널링
CN109687950B (zh) 非授权频带上的传输方法和装置
US9661668B2 (en) Method of device to device communication and apparatus thereof
CN107079324B (zh) 基站装置、终端装置及通信方法
JP7140827B2 (ja) Ｃｓｉ情報を報告および受信するための方法および通信装置
EP2813007A2 (fr) Signaux de commande pour la configuration de communications multipoint coordonnées sur la liaison descendante
WO2013066416A1 (fr) Signalisation pour configuration de communications multipoint coordonnées en liaison descendante
US10425210B2 (en) Method for transmitting uplink control information
US20210258809A1 (en) Csi measurement for multiple trp/panel transmission
CN108029109A (zh) 一种控制信息的传输方法、装置以及系统
WO2021013159A1 (fr) Procédé et dispositif de transmission d'informations d'état de canal
US20210211225A1 (en) Methods and apparatus for multi-instance channel state information reporting
US9419691B2 (en) Data transmission method and apparatus
EP4210378A1 (fr) Procédé et appareil de rapport d'informations d'état de canal
WO2019028733A1 (fr) Procédés et dispositifs de communication de rapport de faisceau
WO2023206013A1 (fr) Améliorations de rapports csi pour livre de codes de type ii
CN115150025B (zh) Csi反馈方法、相关设备及可读存储介质
US20240030986A1 (en) Csi feedback for multi-pdsch transmission

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18922484

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020569763

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18922484

Country of ref document: EP

Kind code of ref document: A1